tis_write_unlock(3)

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tis_write_unlock(3)
NAME
  tis_write_unlock - Unlocks the specified read-write lock that was acquired
  for write access.

LIBRARY
  Standard C Library (libc.so, libc.a)

SYNOPSIS
  #include <tis.h>

  int	tis_write_unlock(
			 tis_rwlock_t	*lock);

STANDARDS
  None

PARAMETERS
  *lock	    Address of the read-write lock to be unlocked.

DESCRIPTION
  This routine unlocks a read-write lock that was acquired for write access.

  Upon completion of this routine, any thread waiting to acquire the lock for
  read access will have those acquisitions granted.  If no threads are
  waiting to acquire the lock for read access, then a thread waiting to
  acquire it for write access will have that acquisition granted.

RETURN VALUES
  If an error condition occurs, this routine returns an integer value
  indicating the type of error.	 Possible return values are as follows:

  0	    Successful completion.

  [EINVAL]  The value specified by *lock is invalid.

ERRORS
  None

RELATED INFORMATION
  Functions: tis_read_lock(3), tis_read_trylock(3), tis_read_unlock(3),
  tis_rwlock_init(3), tis_rwlock_destroy(3), tis_write_lock(3),
  tis_write_trylock(3)


  Manuals: Guide to DECthreads and Programmer's Guide
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